What is the conductivity of a semiconductor sample having electron concentration of `5 xx 10^(18) m^(-3)` hole concentration of `5 xx 10^(19) m^(-3)`, electron mobility of `2.0 m^(2) V^(-1) s^(-1)` and hole mobility of `0.01 m^(2) V^(-1) s^(-1)?`
(Take charge of electron as `1.6 xx 10^(-19)C)`
A. `1.83 (Omega -m)^(-1)`
B. `1.68 (Omega-m)^(-1)`
C. `1.20 (Omega-m)^(-1)`
D. `0.59 (W-m)^(-1)`
